DSD TECH SH-G01B USB Isolator with High-Speed ADI ADUM3165 Chip - 480Mbps

I have a Zoom UAC232 audio interface connected via USB to an Intel NUC which I use for digitizing my record collection. There was a lot of noise coming through the USB and so I tried this isolation unit. It works an absolute treat! In fact, I think it has lowered the noise floor a bit into the bargain. Highly recommended.

This little dongle claims to clean audio signals and it looks to be well made with some electronics inside to do what it claims.In use it is very simple to use, you just plug it into your source USB and then plug your headphones into the device.I can certainly say that the audio isn't degraded in any way and that it does seem a little clearer than before, but when I do a test with it and without it, it's very hard to get a real accurate perception if it is me or the device.Saying that, it always does seem nice and clear, so at worst it's not at detriment to the audio experience.I will continue to use this device and I will report back if there are any future issues, but for now it seems perfectly fine.

I already have a USB1.1 isolator. This unit did not work in any situation where the older isolator worked, including devices which are not bus-powered, so it's not a power delivery problem. It did not work either with USB-C ports on the laptop nor on standard USB ports. It did work with a USB mouse, so it wasn't completely defective. It's also very wide so it blocks adjacent sockets on a laptop.

I have tried other USB opto-isolators and this one is the most reliable I have found. Multiple uses but I use it with a Picoscope to measure signals without any ground loop problems.

The isolator works as described

I am going to use this between an amateur radio transceiver (which has USB) and my PC. It is possible for unwanted currents to travel back towards the PC from the radio; this separates that out, and breaks the path. Nice idea. Good product.